. >>> former president george w. bush is expected to resume his normal schedule today following heart surgery. a spokesman said the president is doing great after going home from the hospital yesterday. doctors placed a stent on his heart and opened up a blocked artery. >>> researchers have linked high blood sugar levels to a greater risk of alzheimer's and other forms of dementia. the study found that too much sugar in the blood can anniversary affect their mind. researchers say keeping glucose at a healthy level may prevent dimension sha. >>> researchers may have identified a new brain food. for most of us, it won't take much convincing to indulge. a harvard study showing chocolate keeps the brain healthy and sharp in old age. when older adults were given hot cocoa for a month, their blood flow was better and memory improved by 30%. >> i need a cup of hot cocoa. >>> cheerleading is apparently a more dangerous sport than it appears to be. researchers say many cheerleaders don't realize it when they suffer concussion